What describes the duration of episodes in persistent atrial fibrillation?

In persistent atrial fibrillation, episodes are characterized by their duration, which typically lasts longer than 7 days. This form of atrial fibrillation does not spontaneously resolve within a short timeframe, requiring medical intervention for rhythm control or restoration to normal sinus rhythm. Patients may present with symptoms that necessitate therapeutic approaches if the arrhythmia persists beyond this duration, indicating the need for careful management and possible cardioversion.

Understanding persistent atrial fibrillation is crucial for clinicians, as it distinctly affects treatment protocols and the urgency of care. The self-resolving nature associated with the other choices does not align with the persistent form, which is marked by prolonged episodes that significantly impact patient wellbeing and may lead to complications if not adequately addressed.